[M] Change in coreboot[master]: soc/intel/ehl: Add MDIO operation to TSN GbE device

[Mario Scheithauer (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Lean Sheng Tan.

Mario Scheithauer has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69383 )

Change subject: soc/intel/ehl: Add MDIO operation to TSN GbE device
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Patch Set 12:

(2 comments)

File src/soc/intel/elkhartlake/tsn_gbe.c:

https://review.coreboot.org/c/coreboot/+/69383/comment/7ac3378d_075409b8 
PS12, Line 104: (void *)(uintptr_t)gbe_tsn_res->base
> Use res2mmio

I will change this from 'gbe_tsn_res' to 'res2mmio'.

https://review.coreboot.org/c/coreboot/+/69383/comment/d739bc34_ccb8c8e9 
PS12, Line 161: &
> & is not needed with function pointers.

Are you sure? If I do this without address operator '&', I get a compiler error 'incompatible types'.